iOS make static package duplicate symbol solution

Original link http://stackoverflow.com/questions/41217839/ Duplicate-symbols-when-integrating-firebase-and-google-sign-in-sdks-manually-wit

When making a static package we are likely to introduce third-party libraries, which can easily occur when our static packages and the third-party libraries introduced by the main project have the same library, in order to solve the problem above the link gives the solution.

1, first make a static package.

2. Use Lipo-info to see if this static package is a FAT file, and if it is a FAT file, it will be split into a x86_64.a,i386.a package of multiple models.

3. Execute Ar-x i386.a When we get a file that is not fat files This command can split this static library into multiple. o files, and each. o file is the compiled output of all. m files in our project. At this point, select the. o file of the third-party library we are referencing to delete all. And then the rest is our code.

4. Add all of our own. o Files together to generate a new. A file: lipo-static *.o-output i386_new.a This form

5, using the above method will all the above generated arm_64.a,i386.a,x86_64.a generated a copy of *_NEW.A this file

6, re-synthesis: Lipo Create ARM_64_NEW.A I386_new.a-output xx.a

7, the synthesis of xx.a is what we want to remove the third-party library of the final static package, add to your main project, if it is loaded pod, the other linker flag-framework Delete and then pod update

->xcode run.

iOS make static package duplicate symbol solution